@media screen and (max-width: 550px) {
  iframe#chatIframe.collapse,
  iframe#chatIframe.expand {
    left: 50%;
    transform: translateX(-50%);
  }
}

@media screen and (max-width: 1382px) {
  iframe#chatIframe.expand {
    left: 50%;
    transform: translateX(-50%);
  }
}

iframe#chatIframe.collapse {
  position: fixed;
  bottom: 20px;
  right: 20px;
  z-index: 9999;
  height: 100%;
  width: 100%;
  max-width: 390px;
  max-height: 680px;
}

iframe#chatIframe.expand {
  position: fixed;
  bottom: 0;
  right: 20px;
  z-index: 9999;
  height: 100%;
  width: 100%;
  max-width: 1222px;
  max-height: 884px;
  margin-bottom: 0;
}

iframe#chatIframe.minimize {
  position: fixed;
  width: 56px;
  height: 56px;
  bottom: 20px;
  right: 20px;
  z-index: 9999;
}

iframe#chatIframe {
  border: none;
  display:block;
  margin-right: 60px;
  margin-bottom: 15px;
}